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    <title>Document</title>
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    <script>
        // 1.then写法
        const p = new Promise((resolve,reject)=>{
            resolve("生成一个成功态对象")
        })
        p.then((msg)=>{
            console.log(msg);
        })

        // 2.await写法
        const p2 = new Promise((resolve,reject)=>{
            resolve("生成一个成功态对象")
        })
        async function fn(){
            let result = await p2
            console.log(result);
        }
        fn()
    </script>
</body>
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